internal static void ValueOfSelectedItem(this DropDownListBase instance, IEnumerable <DropDownListItem> source)
        {
            var selectListItem = source.Where(item => item.Selected == true).FirstOrDefault();

            if (selectListItem != null)
            {
                instance.Value = selectListItem.Value ?? selectListItem.Text;
            }
        }
 public DropDownListHtmlBuilderBase(DropDownListBase component)
 {
     this.Component = component;
 }